Seal for pipe-joints.



No. 882,350. PATENTED MAR. 17. 1908.

B. P. SHAUGHNESSY.

SEAL FOR PIPE JOINTS. APPLIOATION FILED 11.511.21.190?.

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BERNARD FRANCES SHAUGHNESSY, OF PITTSBURG, PENNSYLVANIA.

SEAL FOR PIPE-JOINTS.

Specification of Letters Patent.

Patented March 1'7, 1908.

Application filed March 21, 1907. Serial No. 363,753.

To all whom it may concern:

Be it known That I, BERNARD linANcEs SHAUGHNEssY, a citizen of the United States oi' America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Seals for Pipe-Joints, ol which the following is a specification, relerence being had therein to the accompanying drawing.

This invention relates to a seal for pipe joints, and the invention has for its object to provide positive and reliable means lor stopping a leak in a pipe joint.

The invention comprises a novel two-part clamp and a two-part sleeve which can be easily and quickly placed upon a pipe to stop a leak ot the pipe joint.

The detail construction entering into my invention will be more Fully described in detail and then specifically claimed.

Referring to the drawing forming part ol' this specification, like numerals of reference designate corresponding parts throughout the several views, in which'.

Figure 1 is a sectional view of a pipe joint illustrating my improved seal applied thereto, Fig. 2 is an end -view of the same with the pipe in section, Fig. 3 is a perspective view of a section of one of the clamping members, Fig. 4 is a similar view ol a section of one ol' the sleeves comprising part of my improved seal, Fig. 5 is a perspective view of a washer interposed between the sections ot the sleeves and clamps.

To put my inventionv into practice, I construct a clamp consisting of two senil-cylindrical sections 1, said sections being provided with diametrically opposed [langes 2 having openings S formed therein. One end of each section is enlarged to form a semicylindrical collar 4, which is interiorly screw threaded, as at 5. One section is provided with dowel pins 6, while the opposite section is provided with openings 7 to receive said pins. These pins and openings therefore operate to retain the screw-thread of the sections in proper alinement Vt'or the reception ol" the screw-threads of the sectional sleeve.

In connection with the clamp, I employ a sleeve consisting of two semi-cylindrical sections 7, each section having its one end enlarged, as at S, and provided with exterior' 'flat faces 9. The enlarged end of each section is provided with stepped shoulders 10 and 11, the latter forming a pocket for packing. with dove tail tongues 12, while its adjoining section is provided( with dove tail grooves 14,v

to receive said tongues.

In Fig. 1 of the drawing, I have illustrated an elbow l5 as having a section ol'A pipe 16 connected thereto. AAssuming that there is a leak at the connection of the pipe 16 with the elbow 15, the application of my improved seal to the joint ol said pipe and elbow is as follows:

Suitable packing is placed within the pocket l1 and the two sections of the sleeve 7 placed around the pipe 16 and joined together, by the tongues l2 andthe grooves 14, whereby the sleeve will serve 'functionally as a solid sleeve. 'lhe sleeve is moved into engagement with the end ol' the elbow l5 and the two sections ol the clamp placed together around the pipe 16 and the threads ol` the sleeve. The lugs 2 of the clamp sections are then bolted together by an ordinary bolt 17 and nut 1S until the clamp has become iirmly 'lixed upon the section of pipe 16. T he sleeve is then rotated in the threaded collar of the clamp until it '[irmly grips the end of the elbow 15 compressing the packing within the groove or pocket 1l and preventing l'urther leakage of the connection.

In connection with the sleeve and clamp just described, gaskets 19 can be interposed between the sections of said sleeves or clamps, but I do not care to coniine myself to the use of gaskets in this instance.

Iliat I claim and desire to secure by Letters Patent, is

In a pipe seal, a sleeve embodying two half sections having interlocking tongues, and grooved in their meeting faces, one end of said sleeve being enlarged and the remainder thereof being exteriorly threaded, stepped shoulders Vliornnd in said enlarged head to respectively receive a packing and the end of an abutting pipe, and a clamp embodying two hall" sections 'litting together and having an enlarged interiorly-threaded end to engage the threaded portion of the sleeve, and

means vfor securing said clamp sections to` gether.

In testimony whereo'l I ailix my signature 1n the presence of two witnesses.

BERNARD FRANCES SHAUGIINESSY.

The edges el one section are provided 

